from sqlalchemy import create_engine
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker

# 数据库配置
DATABASE_URL = "mysql+pymysql://opex:goodix**123@rm-j6cn558741zwt53q9ho.mysql.rds.aliyuncs.com/system"

# 创建数据库引擎
engine = create_engine(DATABASE_URL, connect_args={"charset": "utf8mb4"})

# 创建会话工厂
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)

# 创建基本模型类
Base = declarative_base()

# 获取数据库会话
def get_db():
    db = SessionLocal()
    try:
        yield db
    finally:
        db.close()
